EP 3469467 A1 20190417 - DETECTION OF PIEZOELECTRIC SENSOR ELEMENTS
Title (en)
DETECTION OF PIEZOELECTRIC SENSOR ELEMENTS
Title (de)
DETEKTION VON PIEZOELEKTRISCHEN SENSORELEMENTEN
Title (fr)
DÉTECTION DES ÉLÉMENTS DE DÉTECTEUR PIÉZOÉLECTRIQUES
Publication
Application
Priority
- US 201662347609 P 20160609
- EP 2017064127 W 20170609
Abstract (en)
[origin: WO2017212028A1] A detection of piezoelectric sensor elements is provided. According to a first aspect, a device comprises: a matrix of piezoelectric sensor elements comprising rows of the piezoelectric sensor elements and columns of the piezoelectric sensor elements; measuring circuits configured to detect at least one touch, wherein the measuring circuits are configured to the rows and to the columns; and a wake-up trigger configured to detect the at least one touch and further configured to trigger the matrix to an operation mode when the at least one touch is detected. The device is configured for detecting a press event of a plurality of piezoelectric sensor elements, using, for example only a single activity detecting and touch recognition circuit. Complexity and energy consumption may be reduced.
IPC 8 full level
G06F 3/041 (2006.01); H03K 17/96 (2006.01)
CPC (source: EP US)
G06F 3/04144 (2019.04 - EP US); G06F 3/04166 (2019.04 - EP US); H03K 17/9643 (2013.01 - EP US); G06F 2203/04104 (2013.01 - US); H03K 2217/0036 (2013.01 - EP US)
Citation (search report)
See references of WO 2017212028A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2017212028 A1 20171214; CN 109313518 A 20190205; CN 109313518 B 20220510; EP 3469467 A1 20190417; US 10761638 B2 20200901; US 2019179472 A1 20190613
DOCDB simple family (application)
EP 2017064127 W 20170609; CN 201780036072 A 20170609; EP 17731500 A 20170609; US 201716308114 A 20170609